OK, after A LOT of research I just bought a Marshall 6100 30th Anniversary head
It is incredibly clean and the price is quite reasonable for such an impeccable piece.
I chose the 6100 30th Annivertsary because I find it very flexible in terms of:
- Tones: 3 channels covering main Marshall tones. JTM45, Super Lead, 70's Master Volume , 90's Hi-Gain drive....
- Power control: You can choose to run 25w, 50w or 100w (perfect for my current cab) and you can control the impedance so every single cab is OK.
- MIDI footswitch to change patches and the amp channel all with one button
I think it is exactly what I need. It covers everything I wanted and... Satch used to like this babies until Peavey gave him some "resons" to switch.
For some reading:
http://www.marshallamps.com/images/...nniversary.html